'Indeed, for you in the day is a prolonged occupation' (sabhan tawilan), meaning: leisure (farağan) for your needs.
﴿إِنَّ لَكَ فِي النَّهَارِ سَبْحًا﴾ أَي: فراغاً ﴿طَويلا﴾ لحوائجك
