A man once asked Abū Hurayrah – Allāh be pleased with him, ‘What is al-taqwā?” He replied, “Have you ever taken a path filled with thorns?” The man replied, “I have.” Abū Hurayrah asked him, “What did you do?” He replied, “When I saw a thorn I would dodge it or pass over it or behind it.” Abū Hurayrah said, “That is al-taqwā.”

Al-Baihaqī, Al-Zuhd Al-Kabīr p351.