Narrated 'Abdullah bin 'Umar: Allah's Apostle said, "Do not swear by your fathers."
Vol: 008 Book: 078 Hadith: 643
I leave you in the care of Allah, as nothing is lost that is in His care.
Info: Ahmad 2/403, Ibn Majah 2/943. See also Al-Albani, Sahih Ibn Majah 2/133.
