Abu Ishaq was asked: Did you narrate from al-Aswad that Sayyiduna Abdullah (may Allah be pleased with him) said: "When you recite a surah at the end of which there is a verse of prostration, then if you wish, bow, for the bowing is included in the prostration; and if you wish, prostrate, and then recite another surah after it"? He said: Yes.
Hadith Referenceالمعجم الكبير للطبراني / باب العين / 8682