Simple Q&A D&D 3.5 (by RAW) XXVII

[Eaglejarl]

Q520

When a mage creates a magic item, another character can pay the XP costs. When a mage casts a spell with an XP requirement (e.g. Wish), can another character pay the XP cost? The spell says "you must pay" but it also refers to you paying when you create or modify a magic item, and it's already RAW that another character can pay XP costs for a magic item.