TIRMIDHI 798: from Salamah b. al-Akwaʿ —
"When the following was revealed: 'And for those upon whom it is difficult, (they may) feed a poor person' - if one of us wanted we would not fast, and pay the ransom, until the Ayah after it was revealed abrogating it."

الترمذي ٧٩٨: عن سلمه بن الاكوع —
لَمَّا نَزَلَتْ (وَعَلَى الَّذِينَ يُطِيقُونَهُ فِدْيَةٌ طَعَامُ مِسْكِينٍ ) كَانَ مَنْ أَرَادَ مِنَّا أَنْ يُفْطِرَ وَيَفْتَدِيَ حَتَّى نَزَلَتِ الآيَةُ الَّتِي بَعْدَهَا فَنَسَخَتْهَا


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Tirmidhī > Ṣawm (Fasting) > § What Has Been Related About: And For Those Upon Whom It Is...
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