'Abdullah ibn 'Amr ibn al-'As reported that the Prophet, may Allah bless him
and grant him peace, said, "The souls of two believers should
meet in the course of a day even if they do not actually see each other."
Abu Hurayra reported that the Prophet, may Allah bless him
and grant him peace, said, "By the One in Whose Hand my soul is, you will not enter Paradise until you submit to Islam. And, you will not submit to Islam until you love one another.
Extend the greeting to one another and you will love one another. Beware
of hatred, for it is the razor. I do not tell you that it shaves the hair,
but it shaves away the deen."
