What actually happened at Karbala

Its a said thing that our sunni bretheran do not know what has been recorded in thir esteemed islamic books:

**1118 **-حدثنا أحمد بن إسرائيل قال : رأيت في كتاب أحمد بن محمد بن حنبل رحمه الله بخط يده : نا أسود بن عامر أبو عبد الرحمن قثنا الربيع بن منذر ، عن أبيه قال :كان حسين بن علي يقول : من دمعتا عيناه فينا دمعة ، أو قطرت عيناه فينا قطرة ، أثواه الله عز وجل الجنة.
الكتاب : فضائل الصحابة لأحمد بن حنبل

SOURCE (Scroll down to 1118)

Heres a rough translation of above text:

**"**Narrated on the authority of Ahmed bin Isra’el I read in the book of Ahmed bin Muhammed Bin Hanbal written by his own hand writting on the authority of Aswad Bin Amer Abu Abd Arrahman on the Authority of Al-Rubay3 Bin Munther on the authority of his father : that Imam Husain use to say: Whom so ever eyes cries a drop of tears on us , or sheds one drop of tears on us, Allah will reward him with PARADISE"

Moreover check the following article:

CLARIFICATION OF THE MISCONCEPTIONS ABOUT AZADARI (Mourning)

Some excerpts from the article: