The Hafiz forgot and stood up after 14th rakaat. He did Sajda e sahw and moved on to complete 15th & 16th Rakaat. Afterwards, he asked ‘did we have 3 rakaats’. A person said ‘yes thats why you did sajda sahw’. He said ’ lets do it again and he repeated 13th & 14th Rakaat (reciting Quran which he already recited). Thats how we had 23 rakaats taraveh today.
Wasn’t Sajda e Sahw enough for not repeating the rakaats?
Isn’t necessary to do sajda sahw in nawafil / sunnat?