Ibn Abbas said, "The Milky Way is one of the gates of the heavens.
The rainbow is security from being destroyed by flood after the people
of Nuh, peace be upon him."
Ibn 'Abbas said, "None of you should say about a thing which he
does not know, 'Allah knows it' when Allah may know that it is other than
what he said and thus he (tries to) teach Allah what he does not know.
That is something terrible in Allah's sight."
'Abdullah ibn 'Amr said, "Abu Mas'ud, what did you hear the Messenger
of Allah, may Allah bless him and grant him peace, say about 'People who
make false claims?" He replied, "I heard him say, 'A bad mount for a man'
and I heard him say, 'Cursing a believer is like killing him.'"