Do what you are capable of doing (regularly). By Allah, Allah never grows weary (of giving rewards) until you grow weary (of doing good deeds)
Chapter: The command to one who becomes sleepy while praying, or who starts to falter in his recitation of the Qur’an or statements of remembrance, to lie down or sit down until that goes away
Authentic
hadith of Sahih Muslim
Sahih Muslim 785a
‘Ā’ishah, the Mother of the Believers (may Allah be pleased with her) and wife of the Prophet (may Allah's peace and blessings be upon him), reported:
Al-Hawlā’ bint Tuwayt ibn Habīb ibn Asad ibn ‘Abdul-‘Uzza passed by while I was sitting with the Messenger of Allah (may Allah's peace and blessings be upon him). So I said: This is Al-Hawlā’ bint Tuwayt, and they claim that she does not sleep at night. Thereupon, the Messenger of Allah (may Allah's peace and blessings be upon him) said: "She does not sleep at night! Do what you are capable of doing (regularly). By Allah, Allah never grows weary (of giving rewards) until you grow weary (of doing good deeds)."
Reported by Muslim (No. 785a) and Ahmad (No. 24901).
Al-Hawlā’ bint Tuwayt (may Allah be pleased with her) was with the Mother of the Believers ‘Ā’ishah (may Allah be pleased with her), and she left when the Prophet (may Allah's peace and blessings be upon him) entered upon ‘Ā’ishah. ‘Ā’ishah said to him: This woman does not sleep at night; rather, she spends it in prayer. So the Prophet (may Allah's peace and blessings be upon him) said, disapproving of her being too hard on herself: She does not sleep at night! Engage in righteous deeds only as much as you can maintain regularly. By Allah, Allah does not get tired of rewarding His righteous, obedient servants for their acts of obedience, good deeds, and righteous actions until they grow weary and stop doing them.
Lessons
Excessive worship beyond what the body can bear leads to boredom and fatigue, causing the soul to abandon it.
Moderation and balance in performing acts of worship lead to their continuity and firm adherence to them.
A small but consistent deed is better than a lot that is cut off.
An-Nawawi said: With the continuity of a small act of worship, obedience is sustained through remembrance, mindfulness, sincerity, and turning to Allah, unlike a burdensome large deed. Indeed, the consistent small act grows to surpass the interrupted large one many times over.
Explanation in Arabic
كانت عند أم المؤمنين عائشة رضي الله عنها الحولاء بنت تويت رضي الله عنها، فخرجت منها مع دخول النبي صلى الله عليه وسلم عليها.
فقالت عائشة له:
هذه المرأة لا تنام الليل بل تحييه بالصلاة.
فقال صلى الله عليه وسلم مستنكرًا تشديدها على نفسها:
لا تنام الليل! اشتغلوا من الأعمال الصالحة بما تستطيعون المداومة عليه، فوالله لا يسأم الله من إعطاء عباده الصالحين المطيعين الثواب والجزاء على طاعاتهم وحسناتهم وأعمالهم الصالحة حتى يسأموا ويتركوا من العمل.
الإكثار من العبادة فوق ما يطيق الجسد يؤدي إلى الملل والفتور فتترك النفس.
الاعتدال والتوسط في أداء العبادة مدعاة لاستمرارها والثبات عليها.
العمل القليل الدائم خير من الكثير المنقطع.
قال النووي: بدوام القليل تستمر الطاعة بالذكر والمراقبة والإخلاص والإقبال على الله، بخلاف الكثير الشاق حتى ينمو القليل الدائم بحيث يزيد على الكثير المنقطع أضعافًا كثيرة.
وَحَدَّثَنِي عَنْ مَالِكٍ، عَنْ هِشَامِ بْنِ عُرْوَةَ، عَنْ أَبِيهِ، عَنْ عَائِشَةَ، زَوْجِ النَّبِيِّ صلى الله عليه وسلم أَنَّهَا قَالَتْ كَانَ أَحَبُّ الْعَمَلِ إِلَى رَسُولِ اللَّهِ صلى الله عليه وسلم الَّذِي يَدُومُ…
Whenever the Messenger of Allah (ﷺ) instructed his Companions to do something, he would command them only with what they were able to bear. They said: O Messenger of Allah, we are not like you; Allah has forgiven your past and future sins. He would then become angry until his anger would be visible…