Hadhrat Abdullaah bin Salaam :ra: reports that Hadhrat Salmaan :ra: once said to him, "Dear brother! Whichever of us dies first should make an attempt to see his brother." "Is such a thing possible?" Hadhrat Abdullaah :ra: asked.
Hadhrat Salmaan :ra: replied, "Certainly. (After death) The soul of a Mu'min is free to roam wherever it wills on earth, whereas the soul of a Kaafir is locked in captivity."
Hadhrat Abdullaah bin Salaam :ra: says, "Salmaan :ra: passed away and I was lying on my bed one afternoon when I happened to fall asleep. Salmaan :ra: then appeared in my dream and greeted me saying, 'As Salaamu Alayka wa Rahmatullaah.' I responded by saying, 'As Salaamu Alayka wa Rahmatullaah, Abu Abdullaah. How have you found your destination? He replied, 'It is excellent. Hold fast to Tawakkul because Tawakkul is a most excellent virtue! Hold fast to Tawakkul because Tawakkul is a most excellent virtue! Hold fast to Tawakkul because Tawakkul is a most excellent virtue!.'" [1]
Another narration states that when Hadhrat Abdullaah :ra: saw Hadhrat Salmaan :ra: in a dream, he asked, "How are you faring, O Abu Abdullaah?" "I am well," came the reply. "Which deed did you find to be most virtuous?" Hadhrat Abdullaah :ra: asked. Hadhrat Salmaan :ra: replied, "I have found Tawakkul to be most remarkable." [2]
(1) Ibn Sa'd (Vol.3 Pg.4).
(2) Abu Nu'aym in his Hilya (Vol.1 Pg.205).
Taken from Hayat As-Sahaabah - by Maulana Muhammad Yusuf :rh: