Hazrat Shaikh Moulana Muhammad Zakariyya (rahmatullahi ‘alaih) once mentioned:
My friends! Ensure that you are punctual on your daily ma’moolaat (devotional practices). Regard your ma’moolaat to be more important than your food and drink, and try to remain engaged in zikr at all times. If perchance you miss out any ma’mool, then do not have your meal until you complete your ma’mool. Initially, being punctual on your ma’moolaat will be difficult on the nafs. However through determination and commitment, you will begin to see the fruits of progress.
(Qutbul Aqtaab Hazrat Sheikhul Hadith Moulana Muhammad Zakariyya (rahmatullahi ‘alaih) pg. 416)