Sunan Abi Dawud 2387
Narrated AbuHurayrah:
A man  asked the Prophet (ﷺ) whether one who was fasting could embrace (his wife) and he gave him permission; but when another man came to him, and asked him, he forbade him. The one to whom he gave permission was an old man and the one whom he forbade was a youth.
حَدَّثَنَا نَصْرُ بْنُ عَلِيٍّ، حَدَّثَنَا أَبُو أَحْمَدَ، - يَعْنِي الزُّبَيْرِيَّ - أَخْبَرَنَا إِسْرَائِيلُ، عَنْ أَبِي الْعَنْبَسِ، عَنِ الأَغَرِّ، عَنْ أَبِي هُرَيْرَةَ، أَنَّ رَجُلاً، سَأَلَ النَّبِيَّ صلى الله عليه وسلم عَنِ الْمُبَاشَرَةِ لِلصَّائِمِ فَرَخَّصَ لَهُ وَأَتَاهُ آخَرُ فَسَأَلَهُ فَنَهَاهُ ‏.‏ فَإِذَا الَّذِي رَخَّصَ لَهُ شَيْخٌ وَالَّذِي نَهَاهُ شَابٌّ ‏.‏