Anas ibn Malik reported: The Prophet, peace and blessings be upon him, said:
يَسِّرُوا وَلَا تُعَسِّرُوا وَبَشِّرُوا وَلَا تُنَفِّرُوا
Make things easy and do not make things difficult. Give glad tidings and do not frighten them away.
Source: Ṣaḥīḥ al-Bukhārī 69, Grade: Muttafaqun Alayhi