ENOfficial
‘Amr b. ‘Abasa reported God's Messenger as saying, “The nearest the Lord comes to a servant is in the course of the last part of the night, so if you are able to be among those who make mention of God at that hour, do so." Tirmidhi transmitted it, saying that this is a hasan sahih tradition whose isnad is gharib.
Source: sunnah.com
Other translations
Arabic
وَعَن عَمْرو بن عبسة قَالَ: قَالَ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ: «أَقْرَبُ مَا يَكُونُ الرَّبُّ مِنَ الْعَبْدِ فِي جَوْفِ اللَّيْلِ الْآخِرِ فَإِنِ اسْتَطَعْتَ أَنْ تَكُونَ مِمَّنْ يَذْكُرُ اللَّهَ فِي تِلْكَ السَّاعَةِ فَكُنْ» . رَوَاهُ التِّرْمِذِيُّ وَقَالَ: هَذَا حَدِيثٌ حَسَنٌ صَحِيحٌ غَرِيب إِسْنَادًا
sunnah.com