Sa'id bin Jubayr (may Allah have mercy on him) said: Abdullah bin Abbas (may Allah be pleased with them both) slept, then woke up and said to his servant: Go and see what the people have done. In those days Abdullah bin Abbas (may Allah be pleased with them both) had become blind. The servant went and came back, and said: The people are returning after the morning prayer. So Abdullah bin Abbas (may Allah be pleased with them both) stood up and prayed witr, then prayed the morning prayer.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الصلاة / 4530