Al-Kāfi - Volume 2 > Speaking of Allah, the Majestic, the Glorious, Secretly
Hadith #3

3ـ عِدَّةٌ مِنْ أَصْحَابِنَا عَنْ أَحْمَدَ بْنِ مُحَمَّدِ بْنِ خَالِدٍ عَنِ ابْنِ فَضَّالٍ رَفَعَهُ قَالَ قَالَ الله عَزَّ وَجَلَّ لِعِيسَى (عَلَيهِ السَّلام) يَا عِيسَى اذْكُرْنِي فِي نَفْسِكَ أَذْكُرْكَ فِي نَفْسِي وَاذْكُرْنِي فِي مَلَئِكَ أَذْكُرْكَ فِي مَلأ خَيْرٍ مِنْ مَلأ الآدَمِيِّينَ يَا عِيسَى أَلِنْ لِي قَلْبَكَ وَأَكْثِرْ ذِكْرِي فِي الْخَلَوَاتِ وَاعْلَمْ أَنَّ سُرُورِي أَنْ تُبَصْبِصَ إِلَيَّ وَكُنْ فِي ذَلِكَ حَيّاً وَلا تَكُنْ مَيِّتاً.

3. A number of our people have narrated from Ahmad ibn Muhammad ibn Khalid from ibn Faddal in a marfu ’ manner from The Imam (a.s.) who has said the following: “Allah, the Most Majestic, the Most Holy, said to Jesus, peace be upon him, ‘O Jesus, speak of Me to yourself; I speak of you to Myself, speak of Me in public; I speak of you in public, which is better than man’s public. O Jesus, soften your heart for Me, speak of Me very often privately and note that My happiness is in your expressing humility before Me and that you must act as a living one in such condition, and not as a dead person. ’”