Shaykh Muhammad Ibn Ibraaheem (may Allaah have mercy on him) said, “With regard to singling out some days of Rajab for any kinds of ziyaarah (visiting the prophets mosque) etc (or umrah), there is no basis for that.
Imam Abu Shaamah stated in his book al-Bida’ wa’l-Hawaadith that performing acts of worship at specific times which were not prescribed by Islam is not right, because no time is better than any other, except times when it is prescribed to perform a certain kind of worship, or a time when all kinds of good deeds are better than at other times.
Hence the scholars denounced the singling out of the month of Rajab for performing Umrah a great deal(1&2).” Ref: Fataawa (Shaykh) Muhammad Ibn Ibraheem (6/131)
1) In fact the prophet denied making Umrah in the Month Of RaJab. A ’ishah (may Allaah be pleased with her) said, “The Messenger of Allaah (peace and blessings of Allaah be upon him) never performed Umrah in Rajab.” Narrated by al-Bukhaari, 1776 & Muslim, 1255.
2) My Words – If a person did go for Umrah during Rajab but not there is any special virtue due it being the month of Rajab, then inshallah there is nothing wrong with that.
Posted by Abdul Kareem Ibn Ozzie