Hey, Abdallah ! Do not be like a man who used to get up for the night vigil and then he left it.
Sayyidi wa sanadi Mufti Mohammed Taqi Usmani (Allah preserve & protect him) said,
‘Based on this Prophetic saying (hadith) scholars have said that one should not leave the supererogatory (nafil) acts of worship that has been included in his/her daily routine.
However, the meaning of leaving, as I have heard from my Shaykh Dr Abdul Hayy Arifi with reference to Hakim al Umma (Maulana Ashraf Ali) Thanvi (Allah sanctify their secret), is to make an intention to abandon them (altogether and forever).
If there is no intent to abandon them (altogether and forever) but they are skipped for a duration, however, there is an intention that I will continue them (whenever the circumstances are suitable) then inshaAllah it will be not included in this admonishing. ‘
Ina’m al Bari, volume 4, p 320