Translation of the verse 69 from Surah Al-Anbiya’ : Number of verses 112 - - page 327 - Part 17.
We (Allah) said: "O fire! Be you coolness and safety for Ibrahim (Abraham)!"
Allah said, "O fire, be coolness and safety upon Abraham."
(21:69) At this, We commanded, O fire! be cool and become safe for Abraham" . *62
*62) 'Though this is one of those miracles which have been clearly stated in the Qur'an, there are people who try to "prove" that there was no such miracle at all. According to this passage (vv. 68-70), Prophet Abraham was actually threatened to be burnt alive and he was accordingly thrown into the burning fire; but Allah ordered the fire to become cool and harmless for him. In the face of the clear words of the Qur'an, these people deny this miracle because according to them it is impossible even for Allah to go beyond the routine of the physical laws. They say that miracles cannot appeal to the rationalists of the modern age, and therefore these should be interpreted in accordance with physical laws. They forget that according to the Qur'an, Allah is able to do everything, and He dces extraordinary and unusual things which cannot be explained by "science". Therefore they should accept the Qur'an as it is or discard it, but they should not twist it to suit their so-called rationalism.
Source : Al-Anbiya’ Verse 69: Allah said, "O fire, be coolness and safety upon Abraham."