Arabic (Original)
حَدَّثَنَا وَكِيعٌ عَنْ عِكْرِمَةَ بْنِ عَمَّارٍ عَنْ عَاصِمِ بْنِ شُمَيْخٍ عَنْ أَبِي سَعِيدٍ قَالَ كَانَ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ إِذَا اجْتَهَدَ فِي الْيَمِينِ قَالَ لَا وَالَّذِي نَفْسُ أَبِي الْقَاسِمِ بِيَدِهِ.
English Translation
Waki' narrated to us, from Ikrimah ibn Ammar, from Asim ibn Shumaykh, from Abu Sa'id, who said: When the Messenger of Allah, peace and blessings be upon him, swore an emphatic oath, he would say: "No, by the One in whose hand is the soul of Abu al-Qasim."