Hazrat Anas bin Malik (may Allah be pleased with him) reported that the Holy Prophet (peace and blessings of Allah be upon him) said:
يَسِّرُوا وَلَا تُعَسِّرُوا، وَبَشِّرُوا وَلَا تُنَفِّرُوا
“Make things easy and do not make them difficult. Give glad tidings and do not create aversion.”
[Sahih Bukhari, Hadith no. 69]

