It was narrated from ‘Irbad bin Sariyah that the Messenger of Allah ﷺ used to ask for forgiveness for the first row three times and for the second row twice.
أَنَّ رَسُولَ اللَّهِ ﷺ كَانَ يَسْتَغْفِرُ لِلصَّفِّ الْمُقَدَّمِ ثَلاَثًا وَلِلثَّانِي مَرَّةً