As for repeating the prayer:

The scholars have differed concerning someone who performs dry ablution for fear of the cold: must he repeat the prayer both when travelling and when not travelling, in neither case, or only when not travelling? These are three opinions. The view most consistent with the Quran and Sunnah is that he need not repeat it in either case. Whoever is permitted to pray is also permitted to recite the Quran and touch a copy of it. According to the majority of scholars, someone who has performed dry ablution may lead someone who has performed ritual bathing in prayer. This is the position of the four imams; Muhammad ibn al-Hasan, however, disagreed. Allah knows best.

He—may Allah have mercy on him—was asked:

Concerning dry ablution: if someone has a wound on his hand and begins performing ablution, washing his face, must he perform dry ablution when he reaches the washing of his arms? Or should he complete his ablution and then perform dry ablution afterward?

If the wound is bandaged, must he remove the dressing and wash all the sound skin, or should he wash the exposed areas and leave the dressing in place?

He answered:

Praise be to Allah. There is disagreement concerning this issue, with two opinions in the school of Ahmad and elsewhere.

The correct view is that he may delay dry ablution until he has finished his ablution. Indeed, this is what he should do if one adopts the view that he must combine ablution with dry ablution. The position of Abū Hanīfah and Mālik is that he does not need to perform dry ablution, whereas the position of