The guarantee of Jannah

السلام عليكم

بِسْمِ اللهِ الرَّحْمنِ الرَّحِيمِ

Sahl bin Sa'ad (peace be upon him) reported That the messenger of Allah (صلى الله عليه وسلم) has said:

"Whoever gives me a guarantee to protect that which is between his jaws(tongue) and that which is between his legs (private parts), I will give him the guarantee of Jannah.

[Mishkaat ul Masaabih Pg 411, adapted from Bukhari]