Assalamualykum There is a concept in people that it is not better to eat onion after sunset.Is there any proof from the Hadiths for this matter.Another matter related to above concept is that if onion is eaten before sunset it increases sexual power, and if eaten after sunset it decreases the sexual power. Is there any medical proof for this.Kindly reply me please.
Answer:
(Fatwa: 723/673=D-1429)
It is not in the Hadith. However it is written in Hadith that those eating onions should not come to mosque so that people performing salah may not be disturbed with its smell.In the Hadith, there is no mention of harm or advantage of eating onions before or after Maghrib. We do not know if there is any medical reason.
Allah (Subhana Wa Ta’ala) knows Best
Darul Ifta,
Darul Uloom Deoband