"Do not make them run away (from Islam)"

Bukhari :: Book 1 :: Volume 3 :: Hadith 69

Narrated Anas bin Malik:

The Prophet said, "Facilitate things to people (concerning religious matters), and do not make it hard for them and give them good tidings and do not make them run away (from Islam)."

 Do not impose on people more than they can bear, lest they should turn you down and say to you : “we heard and we disobey”, as the Prophet (PBUH) said : “When I order you a matter, keep that which you may bear”(5).

 Hadith no: 68
Narrated / Authority Of: Ibn Masud
The Prophet used to take care of us in preaching by selecting a suitable time, so that we might not get bored. (He abstained from pestering us with sermons and knowledge all the time).

“Call unto thy Lord with wisdom and goodly exhortation and argue with them in a way that is best”, (the ants : 125).