The Prophet (ﷺ) taught me fifteen prostrations while reciting the Qur'an, including three in al-Mufassal and two in Surah al-Hajj.

Abu Dawud said: Abu al-Darda' has reported eleven prostrations from the Prophet (ﷺ), but chain of this tradition is weak.
Sunan Abi Dawud Book 7, Hadith 1
← Previous Hadith The Prophet (ﷺ) said: A surah of the Qur'an containing thirty verses will intercede its reader till he will be forgiven. That is: "Blessed is He in Whose Hand is the sovereignty" (Surah 67).

Sunan Abi Dawud Book 6, Hadith 30 Next Hadith → I said to the Messenger of Allah (ﷺ): Are there two prostrations in Surah al-Hajj? He replied: Yes; if anyone does not make two prostrations, he should not recite them.

Sunan Abi Dawud Book 7, Hadith 2