Shaikh Haji Shakeel Ahmed (Allah preserve him) said,

‘The two most common reasons for not being able to develop a strong personal relationship with Allah for those who are apparently trying to do this are;

1. Inadvertent consumption of impermissible (haram) food, and

2. Persistence in sinful activities.  That are not followed by sincere repentance.

Special care has to be taken regarding meat. It must be assured that it is properly slaughtered (dhabiha).’

Maderasa Sayyidena Maaz bin Jabal, Jeddah, 07 June 2012,  after maghrib