Someone saying, "What Allah wills and you will"

Ibn 'Abbas said, "A man said, to the Prophet, 'Whatever Allah wills and you will.' He said, 'You have put an equal with Allah. It is what Allah alone wills.'"

حَدَّثَنَا أَبُو نُعَيْمٍ، قَالَ: حَدَّثَنَا سُفْيَانُ، عَنِ الأَجْلَحِ، عَنْ يَزِيدَ، عَنِ ابْنِ عَبَّاسٍ: قَالَ رَجُلٌ لِلنَّبِيِّ ﷺ: مَا شَاءَ اللَّهُ وَشِئْتَ، قَالَ: جَعَلْتَ لِلَّهِ نِدًّا، مَا شَاءَ اللَّهُ وَحْدَهُ.