It is the house of Ibn-i Erkam (ra) from the Companions. Until the number of Muslims reached 40, that is, our Prophet (saas). Dâr-ul-Erkam was secretly used as a center of invitation to Islam until Omar Ibn Khattab became a Muslim. Dâr-ul Erkam is close to Safâ. The name of one of the gates close to Safâ is Erkam. 36 m. from the east side of Safâ. now it is the place that follows the place where the electric staircase starts. This place was built as a mosque in 171 Hijri, and all Muslims showed respect until 1375 Hijri. It was demolished on this date in order to expand the Masjid al-Haram.