Arabic (Original)
حَدَّثَنَا مُحَمَّدُ بْنُ جَعْفَرٍ قَالَ حَدَّثَنَا سَعِيدٌ عَنْ أَيُّوبَ عَنْ مُحَمَّدِ بْنِ سِيرِينَ عَنْ أَبِي هُرَيْرَةَ عَنْ النَّبِيِّ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ قَالَ إِذَا دُعِيَ أَحَدُكُمْ فَلْيُجِبْ فَإِنْ كَانَ صَائِمًا فَلْيُصَلِّ يَعْنِي الدُّعَاءَ.
English Translation
Muhammad ibn Ja'far told us: Sa'id told us, from Ayyub, from Muhammad ibn Sirin, from Abu Hurayrah, from the Prophet, peace and blessings be upon him, who said: "When one of you is invited, let him accept; and if he is fasting, let him pray" — meaning let him offer a supplication [for the host].