Felipe Contepomi dives over for Leinster's first try at Donnybrook
Leinster: (14) 31
Tries: Contepomi, Heaslip, D'Arcy, Blaney, Warner
Cons: Contepomi (2), D'Arcy
Borders: (0) 0
Leinster moved back to the top of the Magners League after a bonus-point win at Donnybrook on Saturday night.
Felipe Contepomi and Gordon D'Arcy scored early tries to help the Irish side to a 14-0 lead at half-time.
Second half touchdowns followed from Jamie Healsip, Brian Blaney and Christian Warner.
Leinster will take a three-point cushion to the Arms Park next Friday for what is effectively a title decider against second-placed Cardiff Blues.
However, the Ospreys, with a game in hand, could also have a say.
The game marked the last home outings for Leinster retirees Reggie Corrigan, Guy Easterby and Will Green and it was also the province's last match at Donnybrook before redevelopment work begins at their old Dublin ground.
Buoyed by a large attendance of 8,000, Leinster made a lightning start and put 14 points on the board in as many minutes.
From a lineout attack, a crisp feed from Easterby gave Contepomi the time and space to power over close to the posts for a try he converted.
Try number two followed on 14 minutes when D'Arcy gobbled up a loose ball and shrugged off a poor tackle from Steve Jones to dash in behind the posts and allow Contepomi an easy conversion.
The Reivers did have their chances. Opeta Palepoi knocked on as he lunged for the whitewash after the Scots had done well to force a five-metre scrum, and their forwards did hold their own, but only some impatient play and forced passes left Leinster try-less for the remainder of the first half.
Leinster began the second period with as much urgency as they did in the first.
They worked the ball through a number of phases, with Denis Hickie and D'Arcy involved multiple times, for Heaslip to touch down in the 51st minute and make himself the joint-top tryscorer in the league.
Contepomi failed to convert Heaslip's seventh score of the campaign but it was tries the crowd craved and Leinster's persistence paid off in the closing five minutes as replacements Brian Blaney and Christian Warner both crossed the visitors' whitewash.
Hickie was again at the coalface as Leinster pressed and probed and eventually Blaney found space, wide out on the left, to crash over under Dougie Flockhart's tackle.
Blaney then turned provider as he offloaded for Warner to slice through a tired Reivers defence and complete a record 15th straight home win in the league for Leinster.
Leinster: Dempsey, Kearney, Horgan, D'Arcy, Hickie, Contepomi, Easterby, Corrigan, Jackman, Green, Hogan, O'Kelly, Keogh, Gleeson, Heaslip.
Replacements: Healy, Blaney, Finegan, Jowitt, Whitaker, Warner, Fitzgerald.
Borders: Moffatt, Flockhart, Law, MacRae, De Luca, Jones, Chrystie, Kerr, Scott, Douglas, Grimes, Palepoi, Gray, Miller, Brown.
Replacements: Crombie, Kalman, Hamilton, Dalziel, McKerchar, Townsend, Rennie.
Referee: Hugh Watkins (Wales)