"The swearing of the Messenger of Allah ﷺ was: 'No, and I ask Allah for forgiveness."' (Using translation from Ibn Mājah 2093)

أَنَّ إِبْرَاهِيمَ بَزَقَ عَنْ يَمِينِهِ فَقَالَ «أَسْتَغْفِرُ اللَّهَ»