Blessed places where Duas are accepted

While writing a letter to the people of Makkah, Imaam Hasan Al-Basri (RA) advised them of the following 15 places in Makkah where duas are accepted:1.Inside the Baitullah2.At Multazam3.In Arafat4.In Muzdalifah5.In Mina6.While performing Tawaf7.While performing Sa’ee8.At the hill of Safa9.At the hill of Marwa10.At the well of Zam Zam11.At Maqam of Ibraheem12.Under the Meezaab or aqueduct of the Ka’bah.13.Near the big Shaytan14.Near the middle Shaytan15.Near the small ShaytanIn some other narrations places and instances such as Rukne- Yamani, Mataaf (where tawaf is commenced), near Hajr Aswad and on first sighting the Baytullah are also mentioned.Source:A Guide to Hajj by Maulana Yakub Ismail Patel Kawiwala