رِيَاضُ الصَّالِحِينَ
Riyad as-Salihin 1709
The Book of the Prohibited actions
Prohibition of Swearing in the name of anything besides Allah
وَعَنْ بُرَيْدَةَ رَضِيَ اللَّه عَنْهُ أَنَّ رَسُولَ اللَّهِ صَلَّى اللَّه عَلَيْهِ وَسَلَّمَ قَالَ: مَنْ حَلَفَ بِالأَمَانَةِ، فَلَيْسَ مِنَّا . ((حَدِيث صَحِيح رَوَاهُ أَبُو دَاوُدَ بِإِسْنَادٍ صَحِيح))
Buraidah (May Allah be pleased with him) said: The Messenger of Allah (ﷺ) said, "He who swears by Amanah (trust) is not one of us." [Abu Dawud with authentic Isnad].
Riyad as-Salihin, 1709