**The Messenger of Allaah (salla Allaahu 'alayhi wa sallam) said:
“Let the people stop boasting about their forefathers that have passed away - who are merely fuel for the Hellfire - or they will surely become more insignificant to Allaah than the beetle that rubs faeces on its nose. Allaah has removed from you the party spirit of the Days of Ignorance and the bragging about one’s forefathers. Indeed, a person is either a pious believer or a wretched sinner. All of mankind are the children of Adam, and Adam was created from dirt.” [Reported by Abu Dawood (no.5116) and At-Tirmidhee (no.4233) from Abu Hurayrah and authenticated by Ibn Taymiyah in Al-lqtida (p.35)]
In an another hadeeth, The Messenger of Allaah (salla Allaahu 'alayhi wa sallam) said:
" …People should give up their pride in nations because this is a coal from the coals of hell-fire. If they do not give this up Allah (swt) will consider them lower than a lowly worm which pushes itself through khur (feces)." [abu Dawud and Tirmidhi].**
The hadith which narrated by Abu Hurayrah r.a. from Prophet Muhammad that He said: Almighty Allah has removed from you the pride of the pre-Islamic period and its boasting in ancestors. Moreover Prophet Muhammad said: “Pride is disdaining what is true and despising people”.
Pardon me I don’t understand how to be proud to be a Pakistani related to this.
No. It is not like that. We need to know if the hadith is narrated than in what circumstances. I think the above hadith (the first hadith) is not about being feel proud to be a Pakistani or else but it is related to history. However, I couldn’t find the second hadith. Moreover the above hadith have a point and I found the verse 13 of Chapter (Surah) Al-Hujurat. Detail in short as as follow:
Ibn Abi Hatim recorded that Abdullah bin Umar said: “On the day Makkah was conquered, Prophet Muhammad performed Tawaf around the Ka’bah while riding his camel ‘Al-Qaswa’, and was touching the corners with a stick He had in his hand. He did not find a place in the Masjid where His camel could sit and had to dismount on men’s hands. He led his camel to the bottom of the valley, where He had her sit down. Prophet Muhammad later gave a speech while riding ‘Al-Qaswa’ and said after thanking Allah SWT”.
"O people! Alah the Exalted has removed from you the slogans of Jahiliyyah and its tradition of honoring forefathers. Men are of two types:
1- A man who is righteous, fearful of Allah SWT and honorable to Allah. 2- A man who is vicious, miserable and little to Allah the Exalted.
Verily, Allah the Exalted and Most Honored said: [49:13:]“O mankind! We have created you from a male and a female, and made you into nations and tribes, that you may know one another. Verily, the most honorable of you with Allah SWT is that (believer) who has At-Taqwa. Verily, Allah is All-Knowing, All-Aware.”
here is the complete hadeeth: “Undoubtedly Allah has removed from you the pride of arrogance of the age of Jahilliyah (ignorance) and the glorification of ancestors. Now people are of two kinds. Either believers who are aware or transgressors who do wrong. You are all the children of Adam and Adam was made of clay. People should give up their pride in nations because that is a coal from the coals of Hell-fire. If they do not give this up Allah (swt) will consider them lower than the lowly worm which pushes itself through Khara (dung).” [Abu Dawud and Tirmidhi]
OP quoted two hadiths in support that "People should give up their pride in nations" whereas I replied that its related before the conquest of Makkah where arabs peoples use to have slogans of their tribes and pride on it. For my support i quoted the verse of Qur'an with tafsir. I don't think there is anything objectionable whether being proud to be a Pakistani or else although the most honorable among us is that believer who has more 'Taqwa'.
Almighty Allah made us into different nations and tribes so that we may know each others either by nationality, cast or else.
**The Messenger of Allaah (salla Allaahu 'alayhi wa sallam) said:
"Let the people stop boasting about their forefathers that have passed away - who are merely fuel for the Hellfire - or they will surely become more insignificant to Allaah than the beetle that rubs faeces on its nose. Allaah has removed from you the party spirit of the Days of Ignorance and the bragging about one's forefathers. Indeed, a person is either a pious believer or a wretched sinner. All of mankind are the children of Adam, and Adam was created from dirt." [Reported by Abu Dawood (no.5116) and At-Tirmidhee (no.4233) from Abu Hurayrah and authenticated by Ibn Taymiyah in Al-lqtida (p.35)]
In an another hadeeth, The Messenger of Allaah (salla Allaahu 'alayhi wa sallam) said:
" ...People should give up their pride in nations because this is a coal from the coals of hell-fire. If they do not give this up Allah (swt) will consider them lower than a lowly worm which pushes itself through khur (feces)." [abu Dawud and Tirmidhi].**
What is this about? proud to be Pakistani or else? When this hadith narrated that time no Pakistani or Pakistan was known.
that He 
and one more thing. When u r answering a member who posted right above you, than no need to quote his/her comments. 