‏الصيام : Hadeeth No:2590 'Abdullah b. 'Amr b. al-'As (Allaah be pleased with them) reported that the Messenger of Allaah (sallAllaahu alayhi wa sallam) said: 'Abdullah, don't be like so and so who observed prayer during the whole night and then abandoned it (altogether)....

‏الأيمان : Hadeeth No:4039 This hadith is narrated on the authority of Ibn Umar through another chain of transmitters....