Another older version:
Auliya Had ‘Gifted Knowledge’.
“There is a hikaya of Hazrat Shiban al-Ra’i, Imam Ahmed and Imam Shafi’e (رضوان اللہ تعالیٰ علیہم اجمعین), that once Imam Ahmed bin Hanbal (رضی اللہ تعالیٰ عنہ) was sitting in the gathering of Imam al Shafi’e (رضی اللہ تعالیٰ عنہ), suddenly Sheban al-Rayi came there, upon watching him, Imam Ahmed (رضی اللہ تعالیٰ عنہ) asked Imam Shafi’e (رضی اللہ تعالیٰ عنہ) that ‘I want to inform him (al-Ray’i the Sufi) on his lesser knowledge (of Deen), so that he also get involved into seeking knowledge (i.e, of Sharia)‘.
Imam Shafi’e (رضی اللہ تعالیٰ عنہ) tried to stop him to not to do that, but he didn’t stop, and asked Sheban (رضی اللہ تعالیٰ عنہ) a question, that ‘If a person lost one prayers among the five, and he did not know which one he lost, then what is he has to do?’ Sheban (رضی اللہ تعالیٰ عنہ) said:’O ahmed! such heart is remiss from Allah, it is compulsory to punish such heart, so that it cannot be in any case remiss again, so the person needs to do the all five prayers again“.
Upon listening to these words, (its written that)! Imam Ahmed bin Hanbl (رضی اللہ تعالیٰ عنہ) became hysteric and syncope. When he came back to conscious Imam Shafi’e (رضی اللہ تعالیٰ عنہ) told him, Didn’t I asked you not to tease such people?’.
In another narration it is been recorded about question and answer that, he asked him that upon which quantity zakat (charity) is became wajib (compulsory)?. So Shiban Ra’yi replied him, that in your madhab such and such is upon camels, such an such upon cows, sheep cattle, such and such upon fruitful trees and crops , and in my religion everything is for Zakat (charity)”.
Reference and Scan:
Rawd-al-Rayaheen fi Hikayat al Saliheen (The Grove of Sweet Scents)
Al-Imam al-Sheikh (afifudden abi al Sa’adaat) Abdullah bin As’ad alYafi’e al Yamni al-Makki (696 H/768H) Click below for unicode
Imran Akbar. Article 22