Surah an-Nahl was revealed in Makkah and has 128 ayaat. In the commentary of Majma’ul Bayan it is recorded from the Holy Prophet (s.a.w.) that whoever recites this surah will not be questioned, on the Day of Judgement, about the blessings he received on the Earth and will get the reward equal to the amount of people who left a goodwill when they died.
Imam Ja’far as-Sadiq (a.s.) has said that whoever recites surah an-Nahl once every month, he will be safe from 70 types of diseases and will be from among the people of Jannah.
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IMPORTANT NOTE: This surah should, however, under no circumstance be written and kept in the house or garden as it may have harmful effects. Imam Sadiq (a.s.) has said that if kept in a house or garden, it will soon be destroyed. Indeed this is a weapon that one is only allowed to use against an evil person who is the enemy of Islam.