“The second condition for the acceptance of prayer is that one must feel a pain in their heart for the person for whom they are praying. Allah the Exalted states:
اَمَّنۡ يُّجِيۡبُ الۡمُضۡطَرَّ اِذَا دَعَاهُ
“‘Or, Who answers the distressed person when he calls upon Him.’ (Surah an-Naml, Ch. 27: V. 63)”
(Malfuzat [English], Vol. 3, p. 250)