وَعَنْ أَبِي هُرَيْرَةَ رَضِيَ اللَّهُ عَنْهُ
قَالَ: قَالَ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ: «مَنْ صَامَ يَوْمًا ابْتِغَاءَ وَجْهِ اللَّهِ بَعَّدَهُ اللَّهُ مِنْ جَهَنَّمَ كَبُعْدِ غُرَابٍ طَائِرٍ وَهُوَ فرخ حَتَّى مَاتَ هرما»
He reported God’s messenger as saying, “If anyone out of a desire to please God fasts for a day, God will remove him from jahannam as far as a crow flies from the time it is a young bird till it dies of old age.” Ahmad transmitted it, and Baihaqi transmitted it in Shuab al-iman from Salamah ibn Qais.
Mishkat al-Masabih 1983, Book 8, Fasting, Hadith 117. 1 min read