Bulugh al-Maram 1 The Book of Purification كتاب الطهارة 111

وَلِأَحْمَدَ; عَنِ ابْنِ عَبَّاسٍ: { أَوْ نَقْعِ مَاءٍ } وَفِيهِمَا ضَعْف ٌ 1 . 1 – ضعيف. رواه أحمد (2715).

Ahmad reported from Ibn Abbas (rad) that defecation is prohibited also at the place where water collects. [And both the two (i.e. the previous and this Hadiths) have weakness].