Umrah: those who said every month and those who said whenever you wish

Sayyidah Aishah (may Allah be pleased with her) said: Performing Umrah is permissible throughout one's whole life except on three days: the Day of Sacrifice (Yawm al-Nahr) and two of the days of Tashriq; on these one may not perform Umrah.

Tawus was asked about Umrah, and he said: Once the days of Tashriq have passed, perform Umrah whenever you wish until the following year.

Sayyiduna Ali (may Allah be pleased with him) said: In every month there is (one) Umrah.

And Sa'id bin Jubayr said: In every year there is (one) Umrah.

Ikrimah said: Perform Umrah as often as the razor allows you (that is, perform Umrah whenever your hair has grown enough to be shaved with a razor).

Sayyiduna Anas bin Malik (may Allah be pleased with him) would perform Umrah from Makkah, and whenever his hair grew long enough to be shaved with a razor, he would go out to perform Umrah.

Sayyiduna Ibn Umar (may Allah be pleased with them both) used to perform only one Umrah every year, except in the year of the fighting; in that year he performed two Umrahs, in Shawwal and in Rajab.

Muhammad (Ibn Sirin) held that Umrah should be performed only once a year.

Al-Qasim disliked performing Umrah twice in one month.

Ibrahim said: They (the Companions) used to perform Umrah only once a year.

Hajjaj said: I asked Ata about performing two Umrahs in a month, and he said: There is no harm in doing so.

Al-Hasan (al-Basri) held that Umrah should be performed only once every year.