This hadith is narrated by Ishaq with the same chain uf transmitters except this that the hadith transmitted by Mansur (the above one) is more comprehensive and lengthy.
Sahih Muslim Book 6, Hadith 206
← Previous Hadith Allah waits till when one-third of the first part of the night is over; He descends to the lowest heaven and says: It there any supplicator of forgiveness? Is there any penitant? Is there any petitioner (for mercy and favour)? Is there any solicitor? -till it is daybreak.

Sahih Muslim Book 6, Hadith 205 Next Hadith → He who observed prayer at night during Ramadan, because of faith and seeking his reward from Allah, his previous sins would be forgiven.

Sahih Muslim Book 6, Hadith 207