They (also) said: "Allah took our promise not to believe in a messenger unless he showed us a sacrifice consumed by Fire (from heaven)." Say: "There came to you messengers before me, with clear Signs and even with what ye ask for: why then did ye slay them, if ye speak the truth?" 3:183
Hadith of the day
There is no knowledge and science like pondering and thought; and there is no prosperity and advancement like knowledge and science.
Majlisi, Biharul Anwar, vol. 1, p. 179 Imam Ali (as)