Then he went back hastily.

And let not those grieve you who fall into unbelief hastily; surely they can do no harm to Allah at all; Allah intends that He should not give them any portion in the hereafter, and they shall have a grievous chastisement.

Nothing can be done at once hastily and prudently

Do not believe hastily.

Do nothing hastily but catching of fleas

quickly conceived and hastily thrown together.