Answered by Shaykh Faraz Rabbani
If one has years of missed prayers to make up does one make up the witr and sunnah of Fajr up? (are there other sunnah prayers one should make up) Also, how does one calculate missed prayers if one has been praying some prayers in that time. For example, from when I was accountable for prayers until I started praying consistently, I know I was always praying some prayers but not every prayer.
Assalamu alaikum wa rahmatullah,
You should make a conservative but reasonable estimate of how many obligatory and wajib (i.e. witr) prayers you need to make up. You don’t need to make up missed sunna prayers.
Faraz Rabbani
Please see the following related SunniPath answers:
Makeup Prayers: Performing Sunna Prayers When One Has Makeup Prayers
Quick Makeup Prayers?
Scholarly Consensus on Making-Up Past Missed Prayers
Please search for more related answers on qa.sunnipath.com
Jazakum Allahu Khayr
Wassalam