Sayyidi wa sanadi Shaikh Mufti Mohammed Taqi Usmani (Allah have mercy on him) said,
‘In summary the steadfastness (isteqamet) on Deen consists of,
1. Performing all the essential (faraidh) and recommended (wajibaat) actions
2. Following the Sunna
3. Abstaining from all that is sinful
4. Repenting immediately if a sinful act is committed.
Waaz 15th Feb 1991