حَدَّثَنَا أَبُو بَكْرِ بْنُ أَبِي شَيْبَةَ، حَدَّثَنَا أَبُو أُسَامَةَ، عَنْ هِشَامِ بْنِ عُرْوَةَ، عَنْ أَبِيهِ، عَنْ عَائِشَةَ، قَالَتْ ‏:‏ كَانَتْ عِنْدِي امْرَأَةٌ فَدَخَلَ عَلَىَّ النَّبِيُّ ـ صلى الله عليه وسلم ـ فَقَالَ ‏:‏ ‏"‏ مَنْ هَذِهِ ‏"‏ ‏.‏ قُلْتُ ‏:‏ فُلاَنَةُ ‏.‏ لاَ تَنَامُ - تَذْكُرُ مِنْ صَلاَحِهَا - فَقَالَ النَّبِيُّ ـ صلى الله عليه وسلم ـ ‏:‏ ‏"‏ مَهْ عَلَيْكُمْ بِمَا تُطِيقُونَ فَوَاللَّهِ لاَ يَمَلُّ اللَّهُ حَتَّى تَمَلُّوا ‏"‏ ‏.‏ قَالَتْ ‏:‏ وَكَانَ أَحَبَّ الدِّينِ إِلَيْهِ الَّذِي يَدُومُ عَلَيْهِ صَاحِبُهُ ‏.‏

It wasnarrated that ‘Aishah said: “There was a woman with me, andtheProphet (PBUH) entered upon me and said: ‘Who is that?’ I said:‘So-and-so; she does not sleep,’” – she mentioned herexcessivepraying. “The Prophet (PBUH) said: ‘Keep quiet. Youshould do what youare able to, for by Allah, Allah does not gettired (of giving reward)but you get tired.’” She said: “Themost beloved of religious deed tohim was that in which a personpersists.” Translation Not Available

Book Ref: Sunan Ibn Majah Book 37 Hadith 4238
Web Ref:  Sunan Ibn Majah Vol 5 Book 37 Hadith 4238