Translation of the verse 51 from Surah Al-hijr : Number of verses 99 - - page 264 - Part 14.
And tell them about the guests (the angels) of Ibrahim (Abraham).
And inform them about the guests of Abraham,
(15:51) And tell them the story of the guests of Abraham. *30
*30) The story of Prophets Abraham and Lot has been related to tell the disbelievers of Makkah how angels come down with truth. This was in response to their demand. "Why do you not bring angels before us, if what you say be true?" (v. 7). Then, only this brief answer was given: "We do not send down angels in this way. When they come down, they come down with truth" (v. 8). Now these two events arc cited as two concrete forms of "truth" with which the angels came, as if to ask the disbelievers, "Now decide for yourselves which of these two forms of truth you want angels to bring to you. It is obvious that you do not deserve that "truth" which was sent to Prophet Abraham. Do you then desire that `truth" which the angels brought to the' people of Prophet Lot?"
Source : Al-hijr Verse 51: And inform them about the guests of Abraham,