Encyclopedia of Prophetic Hadiths

The Prophet (may Allah's peace and blessings be upon him) forbade vowing and said: "Indeed, it does not bring any good; rather it is only a means to extract something from the miser."

"Jibrīl kept enjoining me regarding the good treatment of the neighbor to the extent that I thought he would inherit him."

"It is not proper for a Muslim who has something to bequeath to stay for three nights without having his will written with him." ‘Abdullah ibn ‘Umar (may Allah be pleased with him and his father) said: "Since I heard the Messenger of Allah (may Allah's peace and blessings be upon him) say this, not a single night has passed without my will being with me."