Is it permissible to have intercourse with one's wife in the month of Ramadan?

Sexual intercourse during Ramadan nights is permissible by consensus, as indicated by verse 187 of Surat Al-Baqarah, which alleviated the initial ruling that prohibited intercourse after sleeping.

As for sexual intercourse during the daytime in Ramadan, it is forbidden by consensus and is one of the gravest nullifiers of fasting. It necessitates expiation, which is: freeing a slave; if one cannot find one, then fasting for two consecutive months; if one is unable to do that, then feeding sixty needy persons.