This column, the fifth down from the Aisha column and according to Bab-e-Jibrael, is the approximate place where the Prophet (saw) was led the salat in Medina when Qibla was in the direction of Masjid al-Aqsa and in the opposite direction. Mecca.
READ MORE: The Location of Hafsa house (may Allah be pleased with her)
Sources: The story of Madina Munavavara – Dr. Muhammad Ilyas Abdul Ghani