فَإِن تَوَلَّوْا فَقُلْ آذَنتُكُمْ عَلَى سَوَاءٍ وَإِنْ أَدْرِي أَقَرِيبٌ أَم بَعِيدٌ مَّا تُوعَدُونَ
But if they turn away, say, ‘I have proclaimed to you all alike, and I do not know whether what you have been promised is far or near.
Agha Ali Puya Commentary
Commentary on Quran 21:109
[Pooya/Ali Commentary 21:109] When the day of judgement will be held is not the concern of the Holy Prophet. Refer to Nazi-at: 42 to 45. The Holy Prophet is a warner.