حِصْنُ الْمُسْلِمِ
Hisn al-Muslim 221
Fortress of the Muslim (Hisn al-Muslim)
Excellence of sending prayers upon the Prophet (ﷺ)
وَقَالَ صلى الله عليه وسلم: (الْبَخِيلُ مَنْ ذُكِرْتُ عِنْدَهُ فَلَمْ يُصَلِّ عَلَيَّ)
-- The Prophet (ﷺ) said: "The miser is the one in whose presence I am mentioned yet does not pray for Allah's blessings upon me." Reference: At-Tirmidhi 5/551 and others. See also Al-Albani, Sahih At-Tirmidhi 3/177 and Sahihul-Jarai' As-Saghir 3/25.
Hisn al-Muslim, 221