The 48 Labour MPs to back the amendment were:
Heidi Alexander (Lewisham East)
Rushanara Ali (Bethnal Green and Bow)
Ben Bradshaw (Exeter)
Chris Bryant (Rhondda)
Ruth Cadbury (Brentford and Isleworth)
Ann Clwyd (Cynon Valley)
Ann Coffey (Stockport)
Neil Coyle (Bermondsey and Old Southwark)
Mary Creagh (Wakefield)
Stella Creasy (Walthamstow)
Geraint Davies (Swansea West)
Stephen Doughty (Cardiff South and Penarth)
Maria Eagle (Garston and Halewood)
Louise Ellman (Liverpool, Riverside)
Mike Gapes (Ilford South)
Kate Green (Stretford and Urmston)
John Grogan (Keighley)
Helen Hayes (Dulwich and West Norwood)
Meg Hillier (Hackney South and Shoreditch)
Margaret Hodge (Barking)
Darren Jones (Bristol North West)
Susan Elan Jones (Clwyd South)
Liz Kendall (Leicester West)
Peter Kyle (Hove)
David Lammy (Tottenham)
Chris Leslie (Nottingham East)
Kerry McCarthy (Bristol East)
Siobhain McDonagh (Mitcham and Morden)
Pat McFadden (Wolverhampton South East)
Alison McGovern (Wirral South)
Catherine McKinnell (Newcastle upon Tyne North)
Madeleine Moon (Bridgend)
Ian Murray (Edinburgh South)
Albert Owen (Ynys Mon)
Joan Ryan (Enfield North)
Barry Sheerman (Huddersfield)
Gavin Shuker (Luton South)
Tulip Siddiq (Hampstead and Kilburn)
Andy Slaughter (Hammersmith)
Angela Smith (Penistone and Stocksbridge)
Alex Sobel (Leeds North West)
Jo Stevens (Cardiff Central)
Wes Streeting (Ilford North)
Chuka Umunna (Streatham)
Keith Vaz (Leicester East)
Catherine West (Hornsey and Wood Green)
Paul Williams (Stockton South)
Daniel Zeichner (Cambridge)