Imam Sufyaan ath-Thawri (rahimahullah) advised one of his Brothers:

“Today, people are not able to discern between truth and falsehood, and none will be saved from this predicament except for someone who invokes Allah with the same intensity and feeling with which a drowning man invokes Allah for help. Do you know anyone who is at that level?It used to be said: ‘The time draws near for the people when the wise among them will find no joy (but will instead be constantly worried about the degeneration of Muslim society).’ Fear Allah, the Possessor of might and majesty. Be a man of solitude; occupy your time with yourself (with preparing for the Hearafter); and seek companionship with the Book of Allah (Azza wa Jal).”

(Source: Biography of Imam Sufyaan ath-Thawri)

أَبِى هُرَيْرَةَ أَنَّ رَسُولَ اللَّهِ – صلى الله عليه وسلم – قَالَ « يَتَعَاقَبُونَ فِيكُمْ مَلاَئِكَةٌ بِاللَّيْلِ وَمَلاَئِكَةٌ بِالنَّهَارِ ، وَيَجْتَمِعُونَ فِى صَلاَةِ الْفَجْرِ وَصَلاَةِ الْعَصْرِ ، ثُمَّ يَعْرُجُ الَّذِينَ بَاتُوا فِيكُمْ ، فَيَسْأَلُهُمْ وَهْوَ أَعْلَمُ بِهِمْ كَيْفَ تَرَكْتُمْ عِبَادِى فَيَقُولُونَ تَرَكْنَاهُمْ وَهُمْ يُصَلُّونَ ، وَأَتَيْنَاهُمْ وَهُمْ يُصَلُّونَ

Abu Hurayrah (may Allaah be pleased with him) narrated that Allaah’s Messenger (may Allaah’s peace and blessings be upon him) said, “Angels come to you in succession by night and day and all of them get together at the time of Fajr and Asr prayers. Those who have passed the night with you ascend and Allaah asks them, though he knows everything about you, “ In what state did you leave my slaves?” The angels reply: When we left them, they were praying and when we reached them they were praying.”