Wills. Ibn ‘Umar reported God’s Messenger as saying, “It is the duty of a Muslim man who has something which is to be given as a bequest not to have it for two nights without having his will written regarding it.” (Bukhari and Muslim.)
Hadith Referenceمشكوة المصابيح / كتاب الفرائض والوصايا / 3070
Hadith Gradingالألبانی:مُتَّفق عَلَيْهِ | زبیر علی زئی:متفق عليه
Hadith Takhrij´تحقيق و تخريج: محدث العصر حافظ زبير على زئي رحمه الله` «متفق عليه، رواه البخاري (2738) و مسلم (1637/1)»