The Prophet (ﷺ) as saying - the narrator Isma'il transmitted it from Abu Hurairah, and mentioned the tradition about the coming down of revelation-: "So far (is this the case) that when terror is removed from their hearts."
Sunan Abi Dawud Book 32, Hadith 21
← Previous Hadith I came to the Prophet (ﷺ). He then narrated the rest of the tradition.

A man from the people said: "Messenger of Allah! tell us about Saba'; what is it: land or woman? He replied: It is neither land nor woman; it is a man to whom ten children of the Arabs were born: six of them lived in the Yemen and four lived in Syria.

The narrator Uthman said al-Ghatafani instead of al-Ghutayfi. He said: It has been transmitted to us by al-Hasan ibn al-Hakam an-Nakha'i.

Sunan Abi Dawud Book 32, Hadith 20 Next Hadith → The reading of the following verse by the Prophet (ﷺ) goes: "Nay, but there came to thee (ja'atki) my signs, and thou didst reject them (fakadhdhabti biha) ; thou wast haughty (wastakbarti) and became one of those who reject Faith (wa kunti).

Abu Dawud said: This is a mursal tradition, i.e. the link of the Companion has been omitted, for the narrator al-Rabi' did not meet Umm Salamah.

Sunan Abi Dawud Book 32, Hadith 22