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Qurʾān Bukhārī Muslim Nasāʾī Abū Dāwūd Tirmidhī Ibn Mājah Mālik Aḥmad Dārimī Ḥākim Ibn Ḥibbān Ṭabarānī Nasāʾī's Kubrá Bayhaqī al-Luʾluʾ wa-al-Marjān Ibn Rajab's Fifty Riyāḍ al-Ṣāliḥīn Aḥmad's Zuhd Suyūṭī
nasai-kubra:2755 – ʿAmr b. ʿAlī > Abū Dāwud > Shuʿbah > Ziyād b. Fayyāḍ > Abū ʿIyāḍ > ʿAbdullāh b. ʿAmr

[Machine] The Messenger of Allah ﷺ told me, "Fast one day from the beginning of the month, and you will receive the reward for what remains."  

الكبرى للنسائي:٢٧٥٥ – أَخْبَرَنَا عَمْرُو بْنُ عَلِيٍّ قَالَ حَدَّثَنِي أَبُو دَاوُدَ قَالَ حَدَّثَنَا شُعْبَةُ قَالَ أَخْبَرَنِي زِيَادُ بْنُ فَيَّاضٍ قَالَ سَمِعْتُ أَبَا عِيَاضٍ يُحَدِّثُ عَنْ عَبْدِ اللهِ بْنِ عَمْرٍو قَالَ

قَالَ لِي رَسُولُ اللهِ ﷺ «صُمْ يَوْمًا مِنْ أَوَّلِ الشَّهْرِ وَلَكَ أَجْرُ مَا بَقِيَ»