Does the obligation to witness sales lead to undue hardship?

Chapter on Selling the Musarrah (Animal with milk retained in udder)

Al-Mughni

Book of Sales

Book 12 · Issue 5 · Bab 5

Open in Qurani

Primary text

If bearing witness were obligatory for every transaction people undertake in markets and elsewhere, it would lead to undue hardship, which is lifted from the community by the verse: {And He has not placed upon you any difficulty in religion} (Quran 22:78).