Sayyiduna Abdullah bin Abbas (may Allah be pleased with them both) narrates: The Prophet (peace and blessings be upon him) used to kiss the Yamani Corner and place his cheek on it.
Imam Abu Ya'la recorded it. Its chain contains a narrator, Abdullah bin Muslim bin Hurmuz, who is da'if (weak).
Hadith Referenceمجمع الزوائد ومنبع الفوائد / كتاب الحج / 5481