Wiping over a splint

Q: There was a question presented to the program of "Nour ‘Ala Al-Darb" about the legal ruling on a wounded person who fears that the wound might not be healed if washed. Should he wipe over the splint or perform Tayammum (dry ablution with clean earth)? The answer was that he should wipe over the splint and also perform Tayammum so as to avoid an area of scholarly difference. Are we obliged to follow these different opinions arising from the existence of multiple proofs on the same issue, or follow a different understanding that should have given instead an answer closer to the spirit of Shari‘ah (Islamic law)?

A: All praise be to Allah Alone, and peace and blessings be upon His Messenger, and his family and Companions. The answer you heard is debatable and the correct opinion is that wiping (over the splint) is sufficient and dispenses with the need to perform Tayammum.May Allah grant us success. May peace and blessings be upon our Prophet Muhammad, his family, and Companions.