And Sa'd bin Abi Waqqas narrated that the Prophet ( صلی اللہ علیہ وسلم ) said, "By Him in Whose Hand my soul is." And Abu Qatadah narrated that Abu Bakr (may Allah be pleased with him) said in the presence of the Prophet ( صلی اللہ علیہ وسلم ), "No, by Allah!" Therefore, oaths can be sworn by 'Wallahi', 'Billahi', and 'Tallahi'.

Narrated Ibn `Umar: The oath of the Prophet used to be: "No, by Him who turns the hearts."