Sunan Abi Dawud Book 5, Hadith 39
The Prophet (ﷺ) said: Prayer followed by a prayer with no idle talk between the two is recorded in Illiyyun.
The Prophet (ﷺ) said: If anyone sits in his place of prayer when he finishes the dawn prayer till he prays the two rak'ahs of the forenoon, saying nothing but what is good, his sins will be forgiven even if they are more than the foam of the sea.
I heard the Messenger of Allah (ﷺ) say: Allah, the Exalted, says: Son of Adam, do not be helpless in performing four rak'ahs for Me at the beginning of the day: I will supply what you need till the end of it.