Hadith 13781

(حديث مرفوع) حَدَّثَنَا عَبْدُ اللَّهِ بْنُ بَكْرٍ ، حَدَّثَنَا حُمَيْدٌ ، عَنْ أَنَسٍ ، قَالَ : مَا كُنَّا نَشَاءُ أَنْ نَرَى رَسُولَ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ مُصَلِّيًا إِلَّا رَأَيْنَاهُ ، أَوْ نَائِمًا إِلَّا رَأَيْنَاهُ ، قَالَ : " وَكَانَ يَصُومُ مِنَ الشَّهْرِ حَتَّى نَقُولَ : لَا نَرَاهُ يُرِيدُ أَنْ يُفْطِرَ مِنْهُ شَيْئًا ، وَيُفْطِرُ مِنَ الشَّهْرِ حَتَّى نَقُولَ : لَا نَرَاهُ يُرِيدُ أَنْ يَصُومَ مِنْهُ شَيْئًا " .
Humaid says that a person asked Hazrat Anas (may Allah be pleased with him) about the night prayer of the Prophet (peace and blessings be upon him), so he replied: "We could see the Prophet (peace and blessings be upon him) praying at whatever time of the night we wished to see him praying, and if we intended to see him sleeping, we could see him sleeping as well. Similarly, in some months the Prophet (peace and blessings be upon him) would fast so continuously that we would think he would not leave any day without fasting, and at other times he would leave fasting to the extent that we would say perhaps now he will not fast at all."
Hadith Reference مسند احمد / مسند المكثرين من الصحابة / 13781
Hadith Grading حکم دارالسلام: إسناده صحيح، خ: 1141، م: 1158