Allahu tawala asks His slaves to accept their asking at the last third portion of night ()

عن أبي هريرة رضي الله عنه: أن رسول الله صلى الله عليه وسلم قال: يَنْزِلُ رَبُّنَا تَبَارَكَ وَتَعَالَى كُلَّ لَيْلَةٍ إِلَى السَّمَاءِ الدُّنْيَا حِينَ يَبْقَى ثُلُثُ اللَّيْلِ الْآخِرُ، يَقُولُ: مَنْ يَدْعُونِي فَأَسْتَجِيبَ لَهُ؟ مَنْ يَسْأَلُنِي فَأُعْطِيَهُ؟ مَنْ يَسْتَغْفِرُنِي فَأَغْفِرَ لَهُ؟
صحيح البخاري - متفق عليه
Meaning:
On the authority of Abu Hurairah رضي الله عنه that the Messenger of Allahu tawala صلى الله عليه وسلم said: “Our Lord, blessed and exalted be He, descends every night to the nearest sky of the world when the last third of the night remains, saying: ‘Who will call upon Me that I will answer him? Who will ask Me that I will give him? Who will seek My forgiveness that I will forgive him?’ ”
Sahih Al-Bukhari - 1145