Mukhtasar Muslim

`Sayyiduna Ibn Abbas (may Allah be pleased with them both) says that` I did not see the Messenger of Allah (peace and blessings of Allah be upon him) performing istilam (touching or kissing) of any of the two Yemeni corners (Hajar Aswad and Rukn Yamani) except these two. (That is, he did not perform istilam of the other two corners.)