Riyad Us-Saliheen (Gardens of the Righteous)

Chapter 135
Excellence of Greeting at the time of entry into the House

Allah, the Exalted, says:

"But when you enter the houses, greet one another with a greeting from Allah (i.e., say:  As-Salamu `Alaikum - may you be safe from evil), blessed and good.'' (24:61)

861. Anas bin Malik (May Allah be pleased with him) reported: Messenger of Allah (PBUH) said to me, "Dear son, when you enter your house, say As-Salamu `Alaikum to your family, for it will be a blessing both to you and to your family.''
[At-Tirmidhi].

Commentary: Many people, on returning home, feel belittled in saying As-Salamu `Alaikum to their household. In fact, As-Salam is a prayer for goodness, blessing and peace, and one should have no complex about it.