Musannaf Ibn Abi Shaybah 30 — Those who said no prayer is accepted

Sayyiduna Abdullah bin Umar (may Allah be pleased with them both) said: Some people will be called "the diminished ones" on the Day of Resurrection. A man asked: "O Abu Abd al-Rahman, who will they be?" He said: They are the ones who did not perform ablution completely and who kept turning here and there during the prayer.