So do not remiss (in your religious duties)..

On one particular occasion, someone wrote to Imaam Sufyaan, saying, ‘Advise me, but be brief.” He replied: In the Name of Allaah, the Most Beneficent, the Most Merciful. May Allaah protect me and you from evil. My brother, know that the grief and worries of this world do not end and that its happiness is not lasting. So do not remiss (in your religious duties); otherwise, you will perish. And peace be upon you.”

The Biography of Sufyaan Ath-Thauree (rahimahullaah) p170

‎"And understand that success comes from Allaah (subhaanahu wa ta’aala). The key to gaining His help is supplication, prayer, feeling remorse for past negligence, and complete submission to Him. Your days and nights are numbered, so use the time you have left wisely, and do not be negligent in fulfilling the rights of your Lord." -Imam Sufyaan (rahimahullah)

The Biography of Sufyaan Ath-Thauree, rahimahullaah, page 181-183