Reward of saying Alhamdulillaahi rabbil a'alameen four times

Declared Aba Abdillah Imam Ja'far ibn Mohammad al-Sadiq (a.s.)
One who says: Alhamdulillaahi rabbil a'alameen four times every morning has without any doubt thanked for this day and one who says it in the night has thanked for that night.

Reward of reciting salutation (Salawaat) on the Holy Prophet (s.a.w.s.)

1. Imam Muhammad Baqir (a.s.) narrates from his predecessors that the Holy Prophet (s.a.w.s.) said,
"I will stand near Mizan on the Day of Judgment. If I see a person whose sins are more than his good deeds I will keep the salutations recited on me by him in the pan of good deeds and make it tilt in his favor."
 

Reference:

• Sawabul A'amaal, pg 40 & pg 198