‘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.
Hadith Referenceمشكوة المصابيح / كتاب الصلاة / 1229
Hadith Gradingالألبانی:صَحِيح | زبیر علی زئی:إسناده ضعيف
Hadith Takhrij´تحقيق و تخريج: محدث العصر حافظ زبير على زئي رحمه الله` «إسناده ضعيف، رواه الترمذي (3579) [و صححه الحاکم (1/ 163. 165) و أصله عند مسلم (832) ]»