The Essence
Al-Mujeeb is the One who answers the prayers and pleas of His servants. He never ignores a sincere caller. His response may come immediately, be delayed for our good, or be replaced with something better, but He always answers.
In the Quran
فَاسْتَغْفِرُوهُ ثُمَّ تُوبُوا إِلَيْهِ ۚ إِنَّ رَبِّي قَرِيبٌ مُجِيبٌ
"So ask forgiveness of Him and then repent to Him. Indeed, my Lord is near and responsive (Mujeeb). (Surah Hud 11:61)"
In Your Duas
يَا مُجِيبَ السَّائِلِينَ أَجِبْ دُعَائِي
"O Mujeeb (Responsive), the Answerer of those who ask, answer my prayer."
— General Supplication (Quran 7:180)