This hadith is narrated by Muhammad b. Amr b. Ata with these words:
I was with Ibn Abbas, and Ibn Abbas saw the Messenger of Allah (صَلَّی اللَّهُ عَلَيْهِ وَسَلَّمَ) doing like this, and it is also said that the words are: He (the Holy Prophet) offered prayer; and the word" people" is not mentioned.