Abdullah bin `Umar added: Later on Allah's Apostle and Ubai bin Ka`b Al-Ansari (once again) went to the garden in which Ibn Saiyad was present. When Allah's Apostle entered the garden, he started hiding behind the trunks of the date-palms intending to hear something from Ibn Saiyad before the latter could see him. Ibn Saiyad was Lying on his bed, covered with a velvet sheet from where his mumur were heard. Ibn Saiyad's mother saw the Prophet and said, "O Saf (the nickname of Ibn Saiyad)! Here is Muhammad!" Ibn Saiyad stopped his murmuring. The Prophet said, "If his mother had kept quiet, then I would have learnt more about him."