|Imam Malik, Imam Shafi||It is a condition||In the verse 5:6, the words "When ye rise up for prayer.." imply that whudoo and tayammum are not permitted except when is time for prayer. Hence they made whudoo and tayammum obligatory at the time of rising up for prayer, which occurs when it is time for prayer. |
|Imam Abu Hanifa||It is not a condition||In the verse 5:6, the words "When ye rise up for prayer.." actually mean "When ye resolve to undertake prayers.."
Even if we dont take the implied meaning, the only implication would be that the obligation of ablution and tayammum becomes due at the time of the obligation of prayer, not that the performance of ablution and tayammum before the time of prayer is invalid
|Zahirites, Ibn Shaban (disciple of Imam Malik)||It is not a condition|