2D X-shooter spectrum with the slit placed on both QSOs. Short wavelengths are to the left. The centre of the DLA line is marked and chosen as fiducial zero velocity. SPSF subtraction was done for the qA spectrum in the range  − 1300 to  − 200 km s^-1. There is a clear extended residual seen which we interpret as Lyα emission at  − 750 km s^-1. The redshifts of both QSOs based on H   α and H   β are also marked.