The fast of Ramadan was prescribed by consensus without dispute.

The evidence

1. The chain of transmitters — passage/muwatta-1-025

   1. person/malik-ibn-anas
   2. person/muhammad-ibn-shihab-al-zuhri
   3. person/said-ibn-al-musayyab

   A hadith on Ramadan fasting with its chain.

2. chronicle — practice/sawm

   The fasting record — the fourth pillar of Islam.

3. object — concept/hijri-calendar

   The Hijri calendar — Ramadan in the cycle of months.