Weak
graded by Al-Albani
Mishkat al-Masabih 938
Narrator:Umar ibn al-Khattāb
وَعَنْ عُمَرَ بْنِ الْخَطَّابِ رَضِيَ اللَّهُ عَنْهُ قَالَ: إِنَّ الدُّعَاءَ مَوْقُوفٌ بَيْنَ السَّمَاءِ وَالْأَرْضِ لَا يَصْعَدُ مِنْهُ شَيْءٌ حَتَّى تُصَلِّيَ عَلَى نبيك. رَوَاهُ التِّرْمِذِيّ
‘Umar b. al-Khattab said, “The supplication is stopped between heaven and earth, none of it ascending till you invoke blessing on your Prophet.” Tirmidhi transmitted it.
Reported by At-Tirmidhi (No. 486). Cited in Mishkat al-Masabih (No. 938).