It is narrated from Sayyidah Umm Salamah (may Allah be pleased with her) that the Prophet (peace and blessings be upon him) said: "Whoever enters ihram for Umrah from Bayt al-Maqdis (Jerusalem) will be forgiven."
Hadith Referenceالمعجم الكبير للطبراني / مسند النساء / 20308